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Book
Grundlagen der Organischen Chemie
Authors: ---
ISBN: 3110389983 3110331055 9783110389982 9783110331059 Year: 2015 Publisher: Berlin/Boston

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Die 5. Auflage dieses erfolgreichen Lehrbuches wurde sowohl didaktisch als auch inhaltlich überarbeitet. Mit ausführlichen und einfachen Erklärungen bietet das Buch einen optimalen Einstieg in die organische Chemie. Jedes Kapitel enthält zahlreiche Übungsaufgaben mit Lösungen. - Eine gute Wahl für den Einstieg in die Organische Chemie! The 5th edition of this successful textbook has been revised both in terms of content and its teaching approach. With comprehensive but simple explanations, the work provides an optimal introduction to organic chemistry. Each chapter contains numerous practice exercises and solutions, making it an excellent work for students new to the field.


Book
New developments in chromophore research
Authors: ---
ISBN: 1624171559 9781624171550 9781624171543 1624171540 Year: 2013 Publisher: New York Nova Publishers

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Book
Radicals in synthesis III
Authors: --- ---
ISSN: 03401022 ISBN: 3642281222 3642281230 9783642281228 Year: 2012 Volume: 320 Publisher: Berlin ; New York : Springer,

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Siegfried R. Waldvogel Stamo Mentizi Axel Kirste Boron-Doped Diamond Electrodes for Electroorganic Chemistry Gerald Pratsch Markus R. Heinrich Modern Developments in Aryl Radical Chemistry Gregory K. Friestad Radical Additions to Chiral Hydrazones: Stereoselectivity and Functional Group Compatibility Andreas Gansäuer Lei Shi Matthias Otte Inga Huth Antonio Rosales Iris Sancho-Sanz Natalia M. Padial J. Enrique Oltra Hydrogen Atom Donors: Recent Developments Ullrich Jahn Radicals in Transition Metal Catalyzed Reactions? Transition Metal Catalyzed Radical Reactions? - A Fruitful Interplay Anyway Part 1. Radical Catalysis by Group 4 to Group 7 Elements Ullrich Jahn Radicals in Transition Metal Catalyzed Reactions? Transition Metal Catalyzed Radical Reactions? - A Fruitful Interplay Anyway Part 2. Radical Catalysis by Group 8 and 9 Elements Ullrich Jahn Radicals in Transition Metal Catalyzed Reactions? Transition Metal Catalyzed Radical Reactions?: A Fruitful Interplay Anyway Part 3: Catalysis by Group 10 and 11 Elements and Bimetallic Catalysis.


Book
New discoveries on the [beta]-hydride elimination
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ISSN: 21905053 ISBN: 3642320988 9786613944153 3642320996 1283631709 Year: 2012 Publisher: New York : Springer,

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The work presented in Thomas M. Gøgsig's thesis deals with the discovery of new metal-catalyzed transformations ranging from Kumada-, Heck- and Suzuki-type reactions. The thesis starts with a formidable introduction to Pd-catalyzed cross-coupling reactions. New results have been obtained on: (i) Pd-catalyzed 1,2-migration reactions, (ii) Pd-catalyzed Heck reactions employing heteroaromatic tosylates, (iii) Ni-catalyzed Heck reactions, and (iv) Pd-catalyzed carbonylative Heck reactions. Metal-catalyzed cross-coupling reactions are today a highly competititve field (the 2010 Nobel Prize in Chemistry was awarded "for palladium-catalyzed cross couplings in organic synthesis", the 2001 and 2005 Nobel Prizes in closely related fields). Thomas M. Gøgsig obtained new results in his thesis that will help to improve the outcome of catalytic processes and improve their scope. The results will thus become key references for tomorrow's new applications. All chapters include insightful discussions and in-depth descriptions of the key principles of these new discoveries.

The chemical dynamics and kinetics of small radicals.
Authors: ---
ISBN: 9814317179 9789814317177 9810229860 9789810229863 9810229992 9789810229993 9810229976 9789810229979 Year: 1995 Publisher: Singapore River Edge, NJ World Scientific

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This book highlights recent progress in the chemistry of radicals. Developments include the growing use of lasers to generate radicals, the application of lasers to provide state, angular, polarization, energy and real-time resolution in kinetics and dynamics experiments, the development of theories for handling the reactions of radicals, and the simulation of the reaction dynamics of increasingly larger systems for direct comparison to experimental results. The book emphasizes the increasing interaction between experimental dynamics, kinetics and theory. It is appropriate for chemistry graduates.


Book
Solid Catalysts for the Upgrading of Renewable Sources
Authors: ---
Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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The use of solid catalysts for the upgrade of renewable sources gives the opportunity to combine the two main cores of green chemistry, that is, on the one hand, the set-up of sustainable processes and, on the other, the use of biomass-derived materials. Solid catalysts have taken on a leading role in traditional petrochemical processes and could represent a key tool in new biorefinery-driven technologies.


Book
Woody Biomass for Bioenergy Production
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Woody biomass is most widely used for energy production. In the United States, roughly 2% of the energy consumed annually is generated from wood and wood-derived fuels. Woody biomass needs to be preprocessed and pretreated before it is used for energy production. Preprocessing and pretreatments improve the physical, chemical, and rheological properties, making them more suitable for feeding, handling, storage transportation, and conversion. Mechanical preprocessing technologies such as size reduction and densification, help improve particle size distribution and density. Thermal pretreatment can reduce grinding energy and torrefied ground biomass has improved sphericity, particle surface area, and particle size distribution. This book focuses on several specific topics, such as understanding how forest biomass for biofuels impacts greenhouse gas emissions; mechanical preprocessing, such as densification of forest residue biomass, to improve physical properties such as size, shape, and density; the impact of thermal pretreatment temperatures on woody biomass chemical composition, physical properties, and microstructure for thermochemical conversions such as pyrolysis and gasification; the grindability of torrefied pellets; use of wood for gasification and as a filter for tar removal; and understanding the pyrolysis kinetics of biomass using thermogravimetric analyzers.


Book
Oxidative Stress and Inflammation : From Mechanisms to Therapeutic Approaches
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ISBN: 3036560246 3036560238 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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In the biochemical reactions that take place within all living beings, species called free radicals are generated. Denham Harman, in his study on the origin and evolution of life (Harman, 2001), proposes that these species are amongst the causes of the origin of life on our planet. Oxygen is a molecule that provides the primary source of energy in aerobic organisms and therefore is key to the development and evolution of life. On the one hand, it gives rise to life; on the other, due to its ability to form different free radicals, it is capable of damaging essential structures for development. To combat these radicals, our biological systems have developed antioxidant defenses. However, when the balance between free radicals and antioxidant defenses is broken in favor of the former, a phenomenon called oxidative stress occurs, which ends up damaging molecules such as DNA, proteins, carbohydrates, and lipids (Sies, 1983) (Halliwell and Gutteridge, 1985). This phenomenon is implicated both in the development of diseases and in their progression. In addition, inflammation phenomena are also involved in most pathologies, which, although they are essential for tissue repair and immunity, turn against our bodies when they become excessively active. For these reasons, in this special edition we showcase an extensive knowledge of the effects of oxidative stress and inflammation both in diseases such as aging, or for its role in health.

Keywords

Public health & preventive medicine --- diospyrin --- lipopolysaccharide --- anti-inflammation --- macrophages --- nitric oxide --- cytokine --- calcium --- CHOP --- Fas --- p38 MAPK --- Astragalus mongholicus Bunge --- danazol --- telomere --- telomerase --- aging --- diabetic kidney disease --- oxidative stress --- redox imbalance --- hyperimmunized milk --- exercise --- inflammation --- intestinal permeability --- acute respiratory distress syndrome --- antiplatelet --- aspirin --- therapy --- gender --- membrane erythrocyte --- hydroperoxides --- biomarker --- DPPP --- DPH --- TMA --- cardiovascular disease --- data analysis --- precision–recall --- Mediterranean diet --- Oriental diet --- nutrition --- polyphenols --- microbiota --- health --- n-3 PUFAs --- endogenous antioxidants --- anti-inflammatory response --- cardiovascular diseases --- dry eye syndrome --- corneal damage --- tear lipidome --- 5-lipoxigenase --- leukotriene B4 --- prostaglandins --- dimethyl sulfoxide --- zileuton --- air pollution --- soot --- particulate matter --- lung inflammation --- functional groups --- microglia --- porcine liver decomposition product --- lysophospholipids --- mild cognitive impairment --- dementia --- neuroinflammation --- cytokines --- oxygen reactive species --- caloric restriction --- oxidative balance --- adiponectin --- plasma --- white adipose tissue --- experimental model --- anti-inflammatory diets --- inflammatory response --- chronic inflammation --- low grade chronic inflammation --- inflammatory models --- cyclophosphamide --- doxorubicin --- docetaxel --- paclitaxel --- n/a --- precision-recall


Book
Advancing Knowledge on Cyanobacterial Blooms in Freshwaters
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Cyanobacterial blooms are a water quality problem that is widely acknowledged to have detrimental ecological and economic effects in drinking and recreational water supplies and fisheries. There is increasing evidence that cyanobacterial blooms have increased globally and are likely to expand in water resources as a result of climate change. Of most concern are cyanotoxins, along with the mechanisms that induce their release and determine their fate in the aquatic environment. These secondary metabolites pose a potential hazard to human health and agricultural and aquaculture products that are intended for animal and human consumption; therefore, strict and reliable control of cyanotoxins is crucial for assessing risk. In this direction, a deeper understanding of the mechanisms that determine cyanobacterial bloom structure and toxin production has become the target of management practices. This Special Issue, entitled “Advancing Knowledge on Cyanobacterial Blooms in Freshwaters”, aims to bring together recent multi- and interdisciplinary research, from the field to the laboratory and back again, driven by working hypotheses based on any aspect of mitigating cyanobacterial blooms, from ecological theory to applied research.


Book
Water Quality of Freshwater Ecosystems in a Temperate Climate
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This Special Issue consists of fourteen original scientific articles concerning different problems associated with the water quality of freshwater ecosystems in a temperate climate. Most of the articles deal with the relationship between water quality and the structure of ecosystem biocenoses. The conclusion of these articles confirms the fact that the deterioration of water quality has a direct impact on the quantitative and qualitative structure of biocenoses. This is accompanied by a decline in biodiversity and the disappearance of rare plant and animal species. They also draw attention to the particular importance of internal physical and chemical differentiation within the aquatic ecosystem, both in horizontal and vertical dimensions. The problem of ensuring proper ecological conditions and good quality of water in freshwater aquatic ecosystems is also raised, and various methods for the restoration of water bodies are presented. This Special Issue contributes to a better understanding of the causes of water quality deterioration, the mechanisms responsible for the functioning of ecosystems, including the decrease of biodiversity and the possibilities of improving their condition. Thus, it can be helpful for regaining the good ecological status of water bodies required by the Water Framework Directive.

Keywords

biomanipulation --- chlorophyll-a --- hypolimnion aeration --- nutrients --- phosphorus inactivation --- invertebrates --- hydrological regime --- diversity --- water bodies --- water quality --- strontium isotopes --- springs --- meromictic lake --- eutrophication --- catchment --- nutrient load --- agriculture --- European Water Framework Directive --- shallow lake --- stratified lake --- functional groups of phytoplankton --- innovative method of restoration --- oxygenation near the bottom sediments --- phytoplankton biomass --- restoration treatment --- small lake --- sustainable restoration --- rotifers --- microcrustaceans --- aquatic vegetation --- small water bodies --- human-induced impact --- ecological assessment --- macroinvertebrates --- zooplankton --- anthropogenic impact --- stream ecology --- riverbed regulation --- soft water lake --- Lobelia dortmanna --- Littorella uniflora --- Isoëtes lacustris --- human impact --- cyanobacteria --- Daphnia --- harmful algal bloom mitigation --- phytoplankton --- reactive oxygen specie --- water level fluctuation --- multi-proxy approach --- Cladocera --- Chironomidae --- diatoms --- Northern Europe --- West Africa --- climate change --- rainfall variability --- riverbanks --- floodplain lakes --- Carabidae --- stenotopic species --- assemblage --- overgrown --- surface microlayer --- phytoneuston --- metals --- urban water body --- ciliate assemblages --- oxygen concentration --- ecological optimum --- lake --- freshwater habitats --- biodiversity --- aquatic plants --- plankton assemblages --- water cycle --- freshwater ecosystems restoration

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